Identification of phenolic compounds and biologically related activities from Ocotea odorifera aqueous extract leaves

卷:230

Gontijo, Douglas Costa ; Brandao, Geraldo Celio ; Gontijo, Pablo Costa ; de Oliveira, Alaide Braga ; Nogueira Diaz, Marisa Alves ; Fietto, Luciano Gomes ; Viana Leite, Joao Paulo

Univ Fed Vicosa

关键词: Phenolic compounds;    Flavonoids;    Tannins;    Antioxidant;    Antibacterial;    Antimutagenic;   

DOI  :  10.1016/j.foodchem.2017.03.087

学科分类：食品科学和技术

【 摘 要 】

Ocotea odorifera (Veil.) Rohwer is popularly used as food and flavoring. The aim of this study was to determine the chemical composition of the aqueous extract from O. odorifera leaves and evaluate the correlation of their phytochemical composition and biological activities. The antioxidant effect was determined by DPPH radical scavenging, beta-carotene-linoleic acid and lipid peroxidation assays; the antibacterial activity was evaluated by the hole plate and MIC techniques and the antimutagenic activity was evaluated by the Ames test. Identification of phytochemicals was performed by LC-ESI/MS and the correlation between the phytochemical composition of the extract and the evaluated activities. The results allowed the identification of 13 phenolic compounds in the extract that exhibited high antioxidant activity and moderate antibacterial and antimutagenic action. Statistical analyses showed correlation of the total phenolic content with biologically related activities. The phytochemical analyses, together with the biological results, support the popular use of O. odorifera. (C) 2017 Elsevier Ltd. All rights reserved.